ChangelingWhenever you cast an instant or sorcery spell, if it targets one or more other permanents you control, create a token that's a copy of one of those permanents.When a spell or ability an opponent controls causes you to discard this card, create a token that's a copy of target permanent.
Each opponent can't draw more than one card each turn.−2: Look at the top four cards of your library. You may reveal a noncreature, nonland card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.
Extort (Whenever you cast a spell, you may pay . If you do, each opponent loses 1 life and you gain that much life.)Artifacts and creatures your opponents control enter tapped.
FlyingWhenever Korvold, Fae-Cursed King enters or attacks, sacrifice another permanent.Whenever you sacrifice a permanent, put a +1/+1 counter on Korvold and draw a card.
At the beginning of your upkeep, if an opponent controls three or more creatures, sacrifice Defense of the Heart, search your library for up to two creature cards, put those cards onto the battlefield, then shuffle.
VigilanceWhenever Brimaz, King of Oreskos attacks, create a 1/1 white Cat Soldier creature token with vigilance that's attacking.Whenever Brimaz blocks a creature, create a 1/1 white Cat Soldier creature token with vigilance that's blocking that creature.